Mining-pump



(N Model.)

J. B. LYONS.

* MINING PUMP. l No. 347,724. Patented Aug. 1'7, 1886..

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JAMES B. LYONS, OF NORWAY, MICHIGAN.

MlNlNc-PUMP.

SPECIFICATION forming part of Letters Patent'No. 347,724, dated August 17, 1886.

' Application filed February 4, 1886. Serial No. 190,775. (No model.)

To all whom it may concern:

Be it known that I, J AMES B. LYoNs, of Norway, in the county of Menominee and State of Michigan, have invented new and useful Improvements in lVIining-Pumps; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to certain new and useful improvements in mining-pumps of that class wherein two cylinders are placed adjacent to each other--as in a compound pump'- discharging through thedelivery-pi pe common to both; and the invention consists in the peculiar construction and arrangement of checkgates, whereby facilities are obtained for closing off the action of one cylinder without disturbing the eective operation of the other, in case repairs are necessary, and in the peculiar construction, arrangement, and various combinations of the parts, all as more fully hereinafter set forth. f

Figure I is a front elevation of my improved pump. Fig. 2 is a central vertical longitudinal section through one of the pumps on the line a: m in Fig. 1.

In the accompanying drawings, which form a part of this specification, A represents the suction-elbow sections, to the lower end of which is secured the suction-pipes, (notshowm) while to' their upper ends are secured the lower valvc-sections,l5, commonly called by mechanics the H pieces, from the fact that the lower valve-section and foot C of the pumpcylinder are cast in one piece, and in the valvesection B there is properly secured the valve D.

Surmounting thesection Bisavalve section, E, in which is located a valve, F, and on top of this section E is a section, G, in which is located a cut-off valve, H, adapted to be operated by the stem I.

Above or on top of the foot-section C is secured the pump cylinder J, in which the plunger K is reciprocated by any suitable means, (which I do not show and which form no part of this application.)

So far in the construction both of the pumps are alike, receiving their supply from independeutsuction-pipes.

Upon the upper sections, G, is secured a Y- connection, L, upon the upper end of which is secured a section, M, in which is located a valve, N.

Each of the sections, B, E, G, and M, above described, are provided with removable doorplates, O, through which access can be had to their respective chambers for the purpose of making repairs.

The pumps being in operation, the water is drawn into the lower section, A, in the upstroke of the plunger, causing thevalves D to open. In the return-stroke of the plunger, this valve is seated upon its seat, while the water is forced through the water-way into the next or discharge section immediately above, and so on until the water is finally discharged through the Y-connection into the upper section, M, from whence it passes into the discharge-pipe common to both; and when both pumps arelworking, the check-valves or gates lare withdrawn from over the respective waterways through their sections.

In case it becomes necessary to repair one of thc pumps-as for instance, to remove a chip or other obstruction from beneath one of its valves-the operator pushes in upon the stem I, causing its gate H to slide over the water- Y way. He then opens a cock, I, in the door-plate ofthe lower section, which allows air to be drawn in by the suction caused in the reciprocation of the plunger; hence, having destroyed the vacuum, there is no water drawn from the suction-pipe of that pump, notwithstanding the continued operation of its plunger. The door-plate of either section A and E, or both, may then be removed, the obstructions taken out, or old valves replaced with new ones without affecting the operation of the companion pump. When repaired, the doorplates are replaced, the cock closed, and the check-gate is withdrawn to its original position, the pump now being ready to perform its work, and without the necessity of priming.

A mining pump vconstructed substantially as described, having two plungers alternately working up and down, and discharging the waterin one column, the two pump-rods being of the same weight, does away with the necessity of balancing7 the pumps, as is required in the ordinary constructions.

It will be observed that my cutoff valves H IOO are entirely independent ofthe working-valves of the punips, and are not in use when the pumps are both in operation, hence there is comparatively little wear on the saine.

That I claini as niy invention is- 1. rllhe combination, with two punips having a connnon discharge, of cut-off's-one for each pumpindependent of the working-valves thereof, and cocks-one foreach pump-between the suction and cutoff, substantially as and for the purpose specified.

2. The co1nbination,\vith thetwopuinpsprovided with independent suctions and common discharge, of sliding cut-ofls-one for eacli puinp--independent of the working-valves thereof, and a cock, l, between the suction and the eut off', substantially as and for the purpose specified.

3. rlhe combination, with the two puinps provided with `commen discharge and independent suction-pipcs, of the sections G, the Yconneetion L, connecting said sections, the

section M upon the upper end of the connection L, and provided with valve N, and the eut-off1 valves H in said sections G near the base of the connection L, and a cock between the said cut-oil' valve and the suction, substantially as herein shown and described.

4. In a pump, the elbow-sections A, valvesections B, secured thereto, valves D in said sections B, valve-sections E, surmounting the sections B, valve F in section E, section G on the section E, and sliding cut-off valves II in the sections G and provided with handles I, Y-conncction L, uniting thescctions G, chainber M above the connection L, and valve il in said chamber M, each of said sections being provided with removable plates O, and all arranged for joint operation, substantially as and for the purpose specified.

JAMES P. LYONS.

Vitncsses:

Il. S. SPRAGUF., A. GEORGE Mn'r'rssoN. 

